points 1 and 2 lie on a streamline, the fluid has constant density, the flow is steady, and there is no friction. Although these restrictions sound severe, the Bernoulli equation is very useful, ...

Our universe does host life, but it’s not the most optimal universe for life. Published in 1962 by American astronomer Frank ...

The same mass of liquid will have slightly greater volume than the solid. As density equals \(\frac{\text{mass}}{\text{volume}}\), the liquid will have slightly lower density. The density of solid ...

Population density (often abbreviated PD) is a compound measure that tells us roughly how many people live in an area of known size. It is commonly used to compare how 'built-up' two areas are.

Density is usually calculated using a mathematical function of temperature, salinity, and pressure, sometimes called an equation of state. For many years the internationally accepted standard for ...